Suspension and Components
Circle Track Suspension Parts: Control Arms, Shocks & Springs for IMCA & Late Models at JJ Motorsports
Optimize handling and stability on the track with premium circle track suspension components from JJ Motorsports. Our selection includes control arms, shocks, springs, weight jacks, and more, designed for superior cornering, durability, and performance in late models, modifieds, street stocks, and IMCA dirt racing. Compatible with GM Metric frames and other setups, these high-quality parts ensure reliable operation and enhanced traction under intense racing conditions.
Shop trusted brands like Allstar Performance. Explore related categories such as circle track steering and components for precision control or circle track brakes for stopping power.
Top Circle Track Suspension Products
- Lower Control Arm Kit for 1978-88 GM Metric Street Stock & Hobby Stock, Includes Ball Joints & Greasable Bushings – This kit includes stamped steel lower control arms with black powdercoat finish, greasable bushings, and weld-in greasable ball joints for enhanced suspension performance. It is compatible with 1978-88 GM Metric G-Body vehicles and designed for street stock and hobby stock racing applications.
- Allstar Performance Metric Upper Control Arm Left 9in ALL57984 – This tubular upper control arm is designed for the driver side on GM Metric Frames, measuring 9.00 inches long with a bolt-in ball joint and steel construction finished in black powder coat. It features greasable pivot points and is ideal for hobby stock race cars, providing a perfect fit and function.
- Spring Cup Weight Jack Bolt Combo ONE PAIR IMCA Modified Dirt USRA B-Mod Cups – This kit includes two 8" long steel jack bolts with 1-8 course threads and two steel spring cups with a 5-inch outer diameter. It is designed for IMCA Modified, Dirt, and USRA B-Mod cups.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Allstar Performance 16mm Shock Shim U-Shaped 1/16in 10pk ALL64450
ALLSTAR PERFORMANCE
$13.29Shock shim selection directly impacts your suspension's damping characteristics and overall handling precision. These Allstar Performance U-shaped shims let you dial in your shock valving without replacing entire cartridges, saving time and money during...ALL64450- SKU:
- ALL64450
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- ALL64450
$13.29 -
Allstar Performance 16mm Shock Shim Deluxe Kit ALL64444
ALLSTAR PERFORMANCE
$93.99Shock shim selection directly impacts suspension compliance and handling consistency across varying track conditions. This deluxe kit provides multiple shim styles and thicknesses, giving you the tuning flexibility to dial in damping curves without...ALL64444- SKU:
- ALL64444
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- MFG Part #:
- ALL64444
$93.99 -
Allstar Performance 16mm Shock Shim Standard Kit ALL64442
ALLSTAR PERFORMANCE
$72.99Shock shim selection directly impacts your suspension's damping characteristics and on-track performance. This comprehensive kit from Allstar Performance provides multiple shim styles and thicknesses, allowing you to fine-tune your 16mm shock valving...ALL64442- SKU:
- ALL64442
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- MFG Part #:
- ALL64442
$72.99 -
Allstar Performance 16mm Shock Shim Starter Kit ALL64440
ALLSTAR PERFORMANCE
$32.99Shock shim tuning is essential for dialing in your suspension's damping characteristics, and having the right selection on hand eliminates guesswork when dialing in your setup. The Allstar Performance 16mm Shock Shim Starter Kit gives you a comprehensive...ALL64440- SKU:
- ALL64440
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- MFG Part #:
- ALL64440
$32.99 -
Allstar Performance 14mm Shock Collar Shim Kit 1in 10pk ALL64424-10
ALLSTAR PERFORMANCE
$38.99Proper shock collar shimming is critical for fine-tuning suspension geometry and eliminating unwanted movement at the shock mount. These Allstar Performance shims allow you to adjust preload and collar spacing with precision, ensuring consistent...ALL64424-10- SKU:
- ALL64424-10
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
- MFG Part #:
- ALL64424-10
$38.99 -
Allstar Performance 14mm Shock Collar Shim Kit 1in 2pk ALL64424
ALLSTAR PERFORMANCE
$8.49Proper shock collar shimming is critical for fine-tuning suspension geometry and ensuring consistent ride height across your chassis. These Allstar Performance shims allow you to make precise adjustments to shock preload without compromising the...ALL64424- SKU:
- ALL64424
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- MFG Part #:
- ALL64424
$8.49 -
Allstar Performance 14mm Shock Collar Shim Kit 3/4in 10pk ALL64422-10
ALLSTAR PERFORMANCE
$38.99Shock collar shims are essential for fine-tuning suspension geometry and ensuring your shock absorbers sit flush against mounting surfaces—critical for maintaining proper ride height, alignment angles, and suspension response. Whether you're dialing in a...ALL64422-10- SKU:
- ALL64422-10
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MFG Part #:
- ALL64422-10
$38.99Qty in Cart: 0Quantity:Price:$38.99Subtotal: -
Allstar Performance 14mm Shock Collar Shim Kit 3/4in 2pk ALL64422
ALLSTAR PERFORMANCE
$8.49Shock collar shims are essential for fine-tuning suspension geometry and compensating for wear or modifications that alter ride height. This Allstar Performance kit gives you precision adjustability without requiring complete shock replacement, making it...ALL64422- SKU:
- ALL64422
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- ALL64422
$8.49 -
Allstar Performance 14mm Shock Collar Shim Kit 1/2in 10pk ALL64420-10
ALLSTAR PERFORMANCE
$38.99Shock collar shims are essential for fine-tuning suspension geometry and adjusting ride height on 14mm shock applications. Whether you're dialing in a race car setup or compensating for wear on a track-focused build, having quality shims on hand ensures...ALL64420-10- SKU:
- ALL64420-10
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MFG Part #:
- ALL64420-10
$38.99 -
Allstar Performance 14mm Shock Collar Shim Kit 1/2in 2pk ALL64420
ALLSTAR PERFORMANCE
$8.49Shock collar shims are essential for fine-tuning suspension geometry and eliminating unwanted play in your shock mounting points. Whether you're dialing in a street car or optimizing a race setup, this Allstar Performance kit lets you achieve the precise...ALL64420- SKU:
- ALL64420
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- MFG Part #:
- ALL64420
$8.49 -
Allstar Performance 14mm Shock Shim Semi- Solid 1/8in 25pk ALL64418-25
ALLSTAR PERFORMANCE
$29.99Shock shim selection directly impacts your suspension's responsiveness and consistency under load. These Allstar Performance semi-solid shims are engineered to fine-tune damping characteristics, giving you precise control over compression and rebound...ALL64418-25- SKU:
- ALL64418-25
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- MFG Part #:
- ALL64418-25
$29.99 -
Allstar Performance 14mm Shock Shim Semi- Solid 1/8in 10pk ALL64418
ALLSTAR PERFORMANCE
$13.29Shock shim selection directly impacts your suspension's damping curve and overall handling characteristics. These Allstar semi-solid shims let you fine-tune compression and rebound without swapping entire shock valves, saving time and money on the dyno...ALL64418- SKU:
- ALL64418
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- MFG Part #:
- ALL64418
$13.29 -
Allstar Performance 14mm Shock Shim Semi- Solid 1/16in 25pk ALL64416-25
ALLSTAR PERFORMANCE
$29.99Shock shimming is critical for fine-tuning suspension damping characteristics, and having a full range of shim thicknesses on hand ensures you can dial in the perfect valving setup for your specific track conditions and vehicle weight. These Allstar...ALL64416-25- SKU:
- ALL64416-25
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- MFG Part #:
- ALL64416-25
$29.99 -
Allstar Performance 14mm Shock Shim Semi- Solid 1/16in 10pk ALL64416
ALLSTAR PERFORMANCE
$13.29Shock shimming is critical for fine-tuning your suspension's damping characteristics, and having the right shims on hand ensures you can dial in your setup without expensive downtime. These Allstar Performance semi-solid shims are precision-engineered to...ALL64416- SKU:
- ALL64416
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- ALL64416
$13.29 -
Allstar Performance 14mm Shock Shim U-Shaped 3/8in 25pk ALL64414-25
ALLSTAR PERFORMANCE
$34.99Shock shimming is critical for fine-tuning damping rates and dialing in your suspension's response to track conditions. These OEM-quality U-shaped shims allow you to adjust valving stiffness without replacing entire shock assemblies, saving time and...ALL64414-25- SKU:
- ALL64414-25
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- MFG Part #:
- ALL64414-25
$34.99 -
Allstar Performance 14mm Shock Shim U-Shaped 3/8in 10pk ALL64414
ALLSTAR PERFORMANCE
$14.29Shock shim selection directly impacts suspension tuning precision and damping response—getting the right fit is non-negotiable for consistent track performance. These Allstar Performance U-shaped shims are engineered to fine-tune shock absorber valving,...ALL64414- SKU:
- ALL64414
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- ALL64414
$14.29 -
Allstar Performance 14mm Shock Shim U-Shaped 1/8in 25pk ALL64412-25
ALLSTAR PERFORMANCE
$29.99Shock shimming is critical for fine-tuning damping characteristics and dialing in suspension response across variable track conditions. These OEM-quality U-shaped shims allow you to adjust compression and rebound curves without replacing entire shock...ALL64412-25- SKU:
- ALL64412-25
- Availability:
- Ships Same Business Day
- Weight:
- 1.08 LBS
- MFG Part #:
- ALL64412-25
$29.99Qty in Cart: 0Quantity:Price:$29.99Subtotal: -
Allstar Performance 14mm Shock Shim U-Shaped 1/8in 10pk ALL64412
ALLSTAR PERFORMANCE
$13.29Shock shimming is critical for tuning suspension response and controlling bypass flow in racing applications. These 14mm U-shaped shims allow you to dial in precisely the damping characteristics your setup demands, whether you're chasing lap time or...ALL64412- SKU:
- ALL64412
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- MFG Part #:
- ALL64412
$13.29 -
Allstar Performance 14mm Shock Shim U-Shaped 1/16in 25pk ALL64410-25
ALLSTAR PERFORMANCE
$29.99Shock shimming is essential for fine-tuning damping characteristics and dialing in your suspension's performance across varying track conditions. These 14mm U-shaped shims allow you to adjust compression and rebound rates precisely, giving you the...ALL64410-25- SKU:
- ALL64410-25
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- ALL64410-25
$29.99 -
Allstar Performance 14mm Shock Shim U-Shaped 1/16in 10pk ALL64410
ALLSTAR PERFORMANCE
$13.29Shock shim selection directly impacts damping characteristics and suspension tuning precision—getting the right thickness and geometry is essential for consistent performance across different track conditions. These Allstar Performance U-shaped shims are...ALL64410- SKU:
- ALL64410
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- ALL64410
$13.29
